ABS pump wiring

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Isthatacaddy?
Caddy2k Groupie
Posts: 49
Joined: Sun Feb 09, 2020 2:27 pm
Engine size/power: 1.9 TDI (104bhp)

Re: ABS pump wiring

Post by Isthatacaddy? »

Well it was worth a shot, but it made no difference. Thinking about it, anyway, I have 2 12 volt supplies at the plug so I don’t think I have missing fuses.
FishermansFriend
Hyper Poster
Posts: 1034
Joined: Wed Jun 17, 2020 12:10 pm
Location: Ireland Dublin

Re: ABS pump wiring

Post by FishermansFriend »

I made a mistake, its SB4 30Amp and SB25 40Amp. There should be a 5Amp fuse in SB3 for the Onboard supply control unit -J519-.

If you scroll down to the bottom in this link you can see the 2009 diagram file:///C:/Users/Wayne/Downloads/Fuse%20Box%20Diagram%20Volkswagen%20Caddy%20(2k%3B%202003-2010)%20(1).pdf
Isthatacaddy?
Caddy2k Groupie
Posts: 49
Joined: Sun Feb 09, 2020 2:27 pm
Engine size/power: 1.9 TDI (104bhp)

Re: ABS pump wiring

Post by Isthatacaddy? »

No joy Even with this fuse combination it comes up with the same message: Requirements for output test not met.
STP
Hyper Poster
Posts: 727
Joined: Wed Jan 29, 2025 7:01 pm
Engine size/power: 1.6 CR TDI (102bhp)

Re: ABS pump wiring

Post by STP »

Looks like the pump or it's controller are faulty then if you can't find any corrosion on plugs or damaged wiring.
2015 SWB Van, 1.6 CR TDI with Cruise Control, Heated Mirrors, Highline Clocks & MFD, VW Hands Free Bluetooth, Electric Windows, Reversing Cameras, DPF Monitor, Thatcham Cat 2.

My build thread: White MK3 Facelift

My DPF Monitoring Device thread: DPF Monitor
Isthatacaddy?
Caddy2k Groupie
Posts: 49
Joined: Sun Feb 09, 2020 2:27 pm
Engine size/power: 1.9 TDI (104bhp)

Re: ABS pump wiring

Post by Isthatacaddy? »

Yeah, I think it’s gonna need to come off and checked or a replacement found.
Isthatacaddy?
Caddy2k Groupie
Posts: 49
Joined: Sun Feb 09, 2020 2:27 pm
Engine size/power: 1.9 TDI (104bhp)

Re: ABS pump wiring

Post by Isthatacaddy? »

Bit of an update: I swapped the pump out at the weekend and was able to perform an output test and proceeded with the brake bleeding until I sheared one of the bleed valves on a rear calliper. So it seems it was the pump after all Thanks to all who gave their input.
I also discovered that I have a broken leaf spring so I will have to tackle this also. Mine I believe are original and corroded so I couldn’t see a part number to find a replacement. It’s a 2008 LWB if anyone knows what part number would fit. I had a look on eBay etc but there are so many part numbers popping up I wasn’t sure which would be suitable?
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